# Subaru Telescope Optical Tertiary Mirror In-Situ Measured Reflectivity # Coated with Aluminum on 2014-12-03 # Opened the vacuum chamber: No information # Measured with Subaru Portable Spectrophotometer (SPS) on 2020-02-24 (1909 days after) # Measured three times # Data between 950 nm and 1650 nm are also available (SPS-XWW). # Contact: Hirofumi Okita (okita14@naoj.org) # # Wavelength (nm) #1 #2 #3 1000 89.51 87.80 88.50 998 88.93 88.46 88.62 996 89.21 87.76 88.55 994 88.62 87.74 88.89 992 89.67 88.16 88.49 990 88.94 88.81 88.81 988 87.94 87.77 87.87 986 88.80 88.29 87.91 984 88.74 88.68 88.29 982 88.28 87.23 88.31 980 89.19 87.93 88.23 978 88.29 88.17 88.15 976 88.05 88.39 87.88 974 89.12 88.15 88.12 972 88.14 87.55 88.09 970 87.78 88.02 88.54 968 88.34 88.12 88.07 966 88.16 88.31 87.42 964 87.84 87.70 87.50 962 87.48 87.46 87.59 960 87.97 88.08 87.96 958 87.60 87.86 87.64 956 88.24 86.92 87.68 954 87.89 87.56 87.63 952 87.96 87.52 87.73 950 87.67 87.33 86.50 948 87.31 86.66 87.50 946 87.24 86.68 87.01 944 87.13 87.07 86.94 942 86.99 86.61 87.26 940 86.87 86.23 86.82 938 87.36 86.82 86.92 936 87.07 86.46 86.04 934 86.52 86.32 86.13 932 86.77 85.91 86.76 930 86.22 86.39 86.55 928 86.21 85.91 86.00 926 86.36 85.60 86.15 924 86.17 85.33 85.89 922 85.92 85.58 85.69 920 85.87 85.39 85.50 918 85.80 84.94 85.62 916 85.78 85.44 85.00 914 85.66 84.83 85.13 912 85.27 85.46 85.21 910 85.68 84.63 84.86 908 85.00 84.81 84.91 906 84.86 84.48 84.56 904 85.23 84.54 85.13 902 84.76 84.19 84.56 900 84.72 84.02 84.48 898 84.60 83.76 84.58 896 84.44 83.96 83.86 894 84.20 83.79 84.02 892 84.16 83.50 83.95 890 83.73 83.39 83.49 888 83.56 83.05 83.74 886 83.48 83.11 82.94 884 83.55 82.68 83.19 882 82.97 82.76 82.83 880 82.93 82.72 82.52 878 82.77 82.53 82.44 876 82.74 82.34 82.48 874 82.46 82.35 82.45 872 82.34 81.99 82.47 870 82.14 81.47 82.08 868 82.01 81.28 81.83 866 81.84 81.63 81.46 864 81.76 81.54 81.32 862 81.81 80.71 81.63 860 81.39 81.01 81.06 858 81.37 80.77 80.86 856 81.04 81.07 81.08 854 80.88 80.83 80.61 852 81.05 80.67 81.13 850 80.80 80.72 80.67 848 80.88 80.08 80.03 846 80.91 79.92 80.54 844 80.68 80.05 80.42 842 80.30 79.86 80.24 840 80.27 80.06 80.12 838 80.10 79.98 79.59 836 80.16 79.74 79.79 834 80.36 79.54 79.64 832 80.25 79.86 79.72 830 80.13 79.85 79.99 828 79.80 79.80 79.76 826 79.85 79.46 79.81 824 79.58 79.65 79.67 822 80.17 79.48 79.67 820 80.12 79.81 79.92 818 80.14 79.73 79.85 816 80.42 79.64 79.88 814 80.01 79.96 79.61 812 80.03 79.69 79.92 810 80.39 79.99 79.53 808 79.94 79.48 79.83 806 80.08 79.94 80.07 804 80.64 80.07 79.98 802 80.30 80.27 80.07 800 80.01 80.06 79.91 798 80.77 79.76 79.96 796 80.68 80.05 79.95 794 80.81 79.96 80.30 792 80.57 80.13 80.32 790 80.70 80.28 80.43 788 80.69 80.23 80.57 786 80.72 80.37 80.45 784 80.86 80.13 80.56 782 80.91 80.25 80.49 780 81.10 80.23 80.53 778 81.21 80.69 80.83 776 81.38 80.66 80.64 774 81.55 80.72 80.99 772 81.05 80.90 80.88 770 81.42 80.93 80.89 768 81.29 81.11 80.88 766 81.41 80.96 80.95 764 81.60 80.86 81.14 762 81.78 80.85 81.18 760 81.69 81.03 81.31 758 81.70 81.14 81.17 756 81.85 81.19 81.41 754 81.51 81.17 81.29 752 82.03 81.59 81.71 750 81.67 81.38 81.43 748 81.93 81.28 81.72 746 81.94 81.26 81.47 744 82.23 81.69 81.68 742 82.07 81.69 81.67 740 82.29 81.67 81.68 738 82.05 81.63 82.08 736 82.10 81.63 82.01 734 82.45 81.97 81.66 732 82.20 81.86 81.94 730 82.53 81.85 81.95 728 82.46 81.76 82.03 726 82.36 82.08 81.88 724 82.47 82.06 82.01 722 82.66 82.08 82.28 720 82.51 81.86 82.04 718 82.65 81.96 81.91 716 82.77 82.05 82.08 714 82.58 82.23 82.23 712 82.61 82.21 82.36 710 82.47 82.08 82.42 708 82.85 82.31 82.34 706 82.94 82.34 82.28 704 82.64 82.25 82.34 702 82.95 82.16 82.32 700 82.78 82.37 82.63 698 82.84 82.25 82.31 696 82.95 82.50 82.22 694 82.94 82.26 82.60 692 83.04 82.30 82.44 690 83.06 82.38 82.44 688 82.94 82.37 82.60 686 83.12 82.26 82.51 684 82.90 82.56 82.42 682 82.80 82.31 82.48 680 83.17 82.61 82.57 678 83.02 82.54 82.53 676 82.93 82.75 82.41 674 83.05 82.60 82.74 672 83.07 82.48 82.68 670 83.17 82.59 82.69 668 83.14 82.62 82.52 666 83.03 82.56 82.62 664 83.22 82.45 82.58 662 83.04 82.99 82.65 660 83.27 82.72 82.43 658 83.33 82.68 82.55 656 83.20 82.52 82.65 654 83.03 82.81 82.80 652 83.29 82.60 82.57 650 83.00 82.53 82.75 648 83.00 82.65 82.71 646 83.25 82.72 82.79 644 83.13 82.57 82.60 642 83.32 82.63 82.68 640 83.12 82.76 82.71 638 83.38 82.90 82.86 636 83.30 82.77 82.84 634 83.21 82.73 82.78 632 83.31 82.83 82.67 630 83.23 82.78 82.60 628 83.12 82.68 82.77 626 82.97 82.75 82.72 624 83.37 82.74 82.58 622 83.40 82.68 82.68 620 83.24 82.94 82.73 618 83.32 82.67 82.83 616 83.34 82.81 82.65 614 83.47 82.72 82.63 612 83.47 82.72 82.58 610 83.42 82.69 82.61 608 83.34 82.83 82.76 606 83.23 82.74 82.77 604 83.34 82.76 82.69 602 83.16 82.48 82.56 600 83.40 82.77 82.73 598 83.37 82.69 82.63 596 83.40 82.94 82.56 594 83.25 82.85 82.59 592 83.36 82.74 82.51 590 83.30 82.75 82.54 588 83.22 82.90 82.35 586 83.38 82.69 82.54 584 83.06 82.64 82.54 582 83.09 82.66 82.51 580 83.25 82.63 82.52 578 83.23 82.65 82.43 576 83.19 82.49 82.35 574 83.04 82.47 82.38 572 83.18 82.59 82.58 570 83.12 82.55 82.49 568 83.20 82.56 82.28 566 83.17 82.48 82.17 564 83.22 82.46 82.26 562 83.13 82.63 82.36 560 83.17 82.53 81.99 558 82.90 82.48 82.15 556 82.98 82.56 82.19 554 83.02 82.50 82.18 552 82.83 82.67 82.12 550 82.86 82.51 82.04 548 82.75 82.50 82.14 546 82.87 82.39 82.12 544 82.91 82.51 82.14 542 82.80 82.26 82.17 540 82.62 82.36 82.18 538 82.82 82.40 82.20 536 82.90 82.05 82.08 534 82.74 82.46 81.87 532 82.75 82.30 82.03 530 82.83 82.27 81.84 528 82.73 82.23 82.05 526 82.79 82.13 82.12 524 82.69 82.21 81.95 522 82.48 82.14 81.98 520 82.53 82.02 81.81 518 82.72 81.97 81.91 516 82.60 81.97 81.59 514 82.38 82.11 81.75 512 82.64 82.02 82.03 510 82.34 82.05 81.80 508 82.56 81.79 81.48 506 82.55 81.83 81.55 504 82.61 81.97 81.68 502 82.35 81.82 81.51 500 82.47 81.89 81.81 498 82.28 81.82 81.55 496 82.43 81.60 81.49 494 82.02 81.73 81.27 492 82.07 81.46 81.34 490 82.34 81.52 81.44 488 82.28 81.48 81.49 486 82.13 81.51 81.32 484 82.20 81.68 81.37 482 81.98 81.50 81.32 480 81.96 81.33 80.97 478 82.04 81.29 80.91 476 82.16 81.34 81.03 474 81.79 81.06 81.13 472 81.78 81.24 81.16 470 81.90 81.12 81.00 468 81.60 81.14 81.00 466 81.68 81.03 80.87 464 81.63 80.99 81.11 462 81.42 80.77 80.98 460 81.63 81.32 80.84 458 81.65 81.12 80.77 456 81.63 80.89 80.49 454 81.69 81.11 80.81 452 81.47 81.01 80.80 450 81.45 81.00 80.66 448 81.36 80.58 80.98 446 81.30 80.76 80.71 444 81.21 80.90 80.60 442 81.30 80.80 80.53 440 81.08 80.71 80.87 438 81.06 80.69 80.42 436 81.22 80.41 80.24 434 81.09 80.15 80.16 432 81.04 80.70 80.48 430 80.95 80.64 80.48 428 80.67 80.01 80.42 426 81.03 79.96 80.05 424 81.16 80.42 80.18 422 81.22 80.43 80.24 420 81.06 80.39 80.27 418 80.60 80.41 80.45 416 80.66 80.39 80.05 414 80.48 79.52 79.53 412 80.33 79.81 80.11 410 79.99 79.58 79.79 408 80.60 79.31 80.24 406 80.66 80.11 79.71 404 80.54 79.43 79.54 402 79.98 79.63 80.25 400 80.42 79.73 79.90 398 80.09 79.30 79.10 396 79.95 80.22 79.99 394 80.21 79.64 79.32 392 80.44 79.53 79.32 390 79.75 79.75 79.75 388 79.27 80.15 79.86 386 80.21 79.02 79.32 384 80.25 78.43 79.90 382 80.51 78.93 79.32 380 79.83 78.72 79.18 1650 94.35 94.10 94.35 1640 94.36 94.11 94.35 1630 94.37 94.10 94.37 1620 94.37 94.10 94.36 1610 94.36 94.09 94.35 1600 94.35 94.08 94.34 1590 94.35 94.08 94.33 1580 94.33 94.05 94.32 1570 94.33 94.04 94.30 1560 94.30 94.03 94.29 1550 94.29 94.01 94.27 1540 94.26 93.98 94.25 1530 94.25 93.98 94.23 1520 94.22 93.95 94.22 1510 94.21 93.93 94.19 1500 94.18 93.90 94.16 1490 94.15 93.87 94.13 1480 94.13 93.86 94.11 1470 94.11 93.82 94.07 1460 94.07 93.79 94.05 1450 94.05 93.75 94.02 1440 94.01 93.73 93.98 1430 93.98 93.68 93.95 1420 93.95 93.66 93.91 1410 93.92 93.62 93.88 1400 93.88 93.59 93.84 1390 93.84 93.54 93.80 1380 93.81 93.51 93.76 1370 93.77 93.47 93.71 1360 93.74 93.42 93.68 1350 93.68 93.37 93.62 1340 93.64 93.33 93.58 1330 93.59 93.29 93.54 1320 93.53 93.23 93.48 1310 93.49 93.19 93.43 1300 93.44 93.13 93.38 1290 93.38 93.08 93.32 1280 93.33 93.02 93.27 1270 93.27 92.96 93.20 1260 93.22 92.90 93.14 1250 93.15 92.84 93.09 1240 93.09 92.77 93.01 1230 93.03 92.70 92.95 1220 92.95 92.64 92.87 1210 92.87 92.56 92.79 1200 92.80 92.49 92.71 1190 92.72 92.40 92.63 1180 92.62 92.31 92.55 1170 92.54 92.22 92.45 1160 92.44 92.14 92.35 1150 92.36 92.03 92.26 1140 92.26 91.93 92.15 1130 92.14 91.82 92.05 1120 92.03 91.72 91.93 1110 91.91 91.58 91.80 1100 91.77 91.45 91.67 1090 91.64 91.31 91.52 1080 91.48 91.17 91.37 1070 91.33 91.01 91.21 1060 91.17 90.83 91.04 1050 90.98 90.64 90.84 1040 90.77 90.44 90.63 1030 90.56 90.21 90.43 1020 90.32 89.98 90.18 1010 90.07 89.72 89.92 1000 89.79 89.42 89.62 990 89.47 89.12 89.32 980 89.14 88.79 88.97 970 88.75 88.41 88.57 960 88.31 87.98 88.16 950 87.87 87.50 87.68